MK

Michael T. Kopczewski

TM The W. B. Marvin Manufacturing: 2 patents #1 of 3Top 35%
📍 Harrisburg, OH: #1 of 1 inventorsTop 100%
🗺 Ohio: #519 of 4,576 inventorsTop 15%
Overall (1997): #29,716 of 185,788Top 20%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D379650 Electric space heater for mounting on a ceiling or wall Barry W. Smith 1997-06-03
5621846 Radiant electric space heater with angular adjustment support bracket Barry W. Smith 1997-04-15